C # Overriding and access modifier Keyword Preferred order

Which ordering is preferable for the keyword overrideand access method ( public, privateetc.) for the methods? It seems that both are as follows:

    public override string ToString ()
    {
        return "access modifier first";
    }

    override public string ToString ()
    {
        return "override keyword first";
    }

In Java, the order of execution of keywords is usually applied, so this flexibility seems amazing. Obviously, this flexibility is also present in Java ( static public void main (String [] args)works ...).